From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_IN_DEF_DKIM_WL autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 71151C636C8 for ; Thu, 15 Jul 2021 20:46:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 488A1610C7 for ; Thu, 15 Jul 2021 20:46:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234967AbhGOUth (ORCPT ); Thu, 15 Jul 2021 16:49:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56958 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230515AbhGOUtg (ORCPT ); Thu, 15 Jul 2021 16:49:36 -0400 Received: from mail-il1-x133.google.com (mail-il1-x133.google.com [IPv6:2607:f8b0:4864:20::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 66741C061760 for ; Thu, 15 Jul 2021 13:46:43 -0700 (PDT) Received: by mail-il1-x133.google.com with SMTP id j5so6239868ilk.3 for ; Thu, 15 Jul 2021 13:46:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=OCO2GLiBjoRD/wTxNrNfCDAnG7zKjv0CL7NTl3BL+74=; b=I0MkSo8yM2K5tEzlBDhRnP8YhYapYwdfbBNFzzqqHMrFvY3KrJoIt1Zv/s3ua5Q8ex ntJ5Z9JDLZJMZCaZaNyaHVhoPK8QATqokl/URX4D20MFooZGvu2OG4md08rSsbInuSf0 6G2QWeAffQ7jaJKk8PRAt4dTGySZmcfMdWni0pRNyu5z2C2vXucfH3uWBXRvwVW9aiva MTDgq6TeUo1llzWBkL/f+99OYjvpMPbQAYDrOp/ALl05VkDSepaNFWJ2UJWAbxw0bXhn fwYAWjIo0HHpBdAjIblq6SySwELzDTQUF96BFd86Hg93eHVFvAwHzZFT7NJ5XqvnPIYg cl4w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=OCO2GLiBjoRD/wTxNrNfCDAnG7zKjv0CL7NTl3BL+74=; b=TXn9q36f7EzaLsP59cZ+Zs8grRsXr9ApQO0ADSN+egEPOVGvfe1/QE3B4Jh3/cZmOh F+brEjRzQRPyDkT/Zg7Yi0Ufhy66SjQ3hO89VQUVReIopH0T+kqDdGF4YEd3/FjHBhBd 2Um+CKYZLaBLYKWF0QuOfU3Ct05U5vYJEwnuTzUuTtnJ+EMO7nx/CgAsUlmpDVHYVUx0 uNdDuQmcIeoundfHcGdG1585b/CYg382AqmsHdnsG7luSbrzYDwUoKJdvA0dXBITpkI7 ZlgeQofbXmlKozM1yw/3ldv/cnNnv9ek+FCi4dLRWGXWRiCKsb1Py5HLdbu8WOPsLDMS 1ajw== X-Gm-Message-State: AOAM533zYqGZQrI8yilgGxmqOoNrz/zgpteU8BgSZGQBiRZ4ORDb5/Gl Bopi+1LCE3DIn6wD7SVBo9QFhtBA+GlcblNn/kds2A== X-Google-Smtp-Source: ABdhPJywr2YTvdCzA0n7KMwrAbZlhKHlkOtcD1+HT81phD3qBTh8qhlLHL+hqk07V7I3jT92GlaL1q21jZm1sy9a9fI= X-Received: by 2002:a92:c143:: with SMTP id b3mr3800751ilh.145.1626382002690; Thu, 15 Jul 2021 13:46:42 -0700 (PDT) MIME-Version: 1.0 References: <20210713013857.3237634-1-pcc@google.com> In-Reply-To: From: Peter Collingbourne Date: Thu, 15 Jul 2021 13:46:31 -0700 Message-ID: Subject: Re: [PATCH v3] sigaction.2: Document SA_EXPOSE_TAGBITS and the flag support detection protocol To: "Alejandro Colomar (man-pages)" Cc: Catalin Marinas , Evgenii Stepanov , Kostya Serebryany , Vincenzo Frascino , Dave Martin , Will Deacon , Oleg Nesterov , "Eric W. Biederman" , "James E.J. Bottomley" , Michael Kerrisk , Linux ARM , Kevin Brodsky , Andrey Konovalov , Linux API , Helge Deller , David Spickett , linux-man@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-api@vger.kernel.org On Wed, Jul 14, 2021 at 1:37 PM Alejandro Colomar (man-pages) wrote: > > Hi Peter, > > On 7/13/21 3:38 AM, Peter Collingbourne wrote: > > Signed-off-by: Peter Collingbourne > > --- > > This feature landed back in 5.11, but the manpage > > update seems to have fallen through the cracks. > > Sorry, I don't remember what happened :/ > Thanks for the ping. > > > Here's a v3 with the introducing version specified > > and with one formatting nit fixed. > > Please See some comments below (especially in the example code). Addressed all comments in v4. > BTW, could you please link to the thread in the kernel mailing list that > added this feature? There were several threads (the patch went through several revisions). But you can find your way to most of the threads starting from here: https://lore.kernel.org/linux-arm-kernel/?q=pcc+far_el1 Peter